福建中立恒自动化设备有限公司
目前，世界上有200多个厂家生产可编程序控制器产品，厂家有德国的西门子，美国的Rockwell(AB)、通用(GE),日本的三菱、欧姆龙，法国的施耐德等。
可编程序控制器总的发展趋势是向高集成度、小体积、大容量、高速度、易使用、高性能方向发展。具体表现在以下几个方面：
(1)向小型化、专用化、低成本方向发展
20世纪80年代初，小型PLC在价格上还高于小系统用的继电器控制装置。随着微电子技术的发展，新型器件大幅度的提高功能和降低价格，使PLC结构更为紧凑，功能不断增加，将原来大、中型PLC才有的功能移植到小型PLC上，如模拟量处理、数据通讯和复杂的功能指令等，但价格不断下降，真正成为继电器控制系统的替代产品。
(2)向大容量，高速度方向发展
大型PLC采用多微处理器系统，有的采用32位微处理器，可同时进行多任务操作，处理速度提高，特别是增强了过程控制和数据处理的功能。另外，存储容量大大增加。
(3)与计算机联系密切
从功能上看，PLC不仅能完成逻辑运算，且计算机的复杂运算功能在PLC中也进一步得到利用，从结构上看，计算机的硬件和技术越来越多地应用到PLC；从语言上看，PLC己不再是单纯用梯形图语言，而且可用多种语言编程，如类似计算机汇编语言的语句表，甚至可直接由计算机语言编程；在通讯方面，PLC与计算机可直接相连并进行信息传递。
(4)发展多样化
可编程序控制器发展的多样化体现在3个方面：产品类型、编程语言和应用领域。
(5)模块化
PLC的扩展模块发展迅速。功能明确化、专用化的复杂功能由专门模块来完成。主机仅仅通过通讯设备向模块发布命令和测试状态，这使得PLC的系统功能进一步增强，控制系统设计进一步简化。
(6)网络与通讯能力增强
计算机与PLC之间以及各个PLC之间的联网和通讯的能力不断增强，使用工业网络可以有效地节省资源、降低成本、提高系统可靠性和灵活性，致使网络的应用有普遍化的趋势。
(7)多样化与标准化
生产PLC产品的各厂家都在大力度地开发自己的新产品，以求占据市场的更大份额。因此产品向多样化方向发展，出现了欧、美、日多种流派。与此同时，为了推动技术标准化的进程。一些国际性组织，如国际电工委员会(IEC)不断为PLC的发展制定一些新的标准，如对各种类型的产品作一定的归纳或定义，或对PLC未来的发展制定一种方向或框架。
(8)工业软件发展迅速
与可编程序控制器硬件技术的发展相适应，工业软件的发展非常迅速，它使系统应用更加简单易行，大大方便了PLC系统的开发人员和操作使用人员。
可编程序控制器的输出信号类型可以是开关量、模拟量和数字量。输出单元从广义上分包含两部分：一是与被控设备相连接的接口电路，另一部分是输出的映像寄存器。
PLC运行时CPU从输入映像寄存器读取输入信息并进行处理，将处理结果放到输出映像寄存器。输出映像寄存器由输出点相对应的触发器组成，输出接口电路将其由弱电控制信号转换成现场需要的强电信号输出，以驱动电磁阀、接触器、指示灯等被控设备的执行元件。
以下链接皆有货
Yokogawa EJA130A DMS5A-62DC/U Pressure Transmitter
CÂBLE D'EXTENSION METRIX SÉRIE MX8031
LS Industrial Systems SV015IG5-4 Inverter VFD
LS Industrial Systems SV022IG5-4 Inverter VFD
IME ANTN1141 AL96MI Insulation Network Monitor
VEGABAR 14 Pressure Transmitter Type BAR14.M1FA1GP1P
HI-FORCE HSS102 Hydraulic Jack Cylinder
Siemens SITRANS P 7MF4433-1DA02-2AB1-Z Differential Pressure Transmitter
Daikin KS0-G02-2CA-30 Solenoid Controlled Valve
Pompe manuelle hydraulique Casappa EP45-S/T0A
DPHARP YOKOGAWA EJA438W 40KG/CM2 PRESSURE TRANSMITTER
TAIYO Electric AA198C SIC-41A PCB Board
TAIYO Electric AA-194A SIC-1 PCB Board
TAIYO Electric AA-198C SIC-41 PCB Card
Contrôleurs de température Saginomiya TPS-K2100WL3Q gamme 40-100 *C
Module d'alimentation Phoenix Contact QUINT-PS/24DC/24DC/10
Baumer TCR6-1720 Temperature Sensor
Ridgid 326 Ratchet Copper Tube Bender
Sika Digital Pressure Gauge 300bar
Rosemount 3051CG4A22A1AM5B4K5L4P1Q4 Pressure Transmitter 0 to 6 kg/cm2
Rosemount 3051CG4A22A1AM5B4K5L4P1Q4 Pressure Transmitter 0 to 10 kg/cm2
Rosemount 3051CG1A22A1AM5B4DFK5Q4 Pressure Transmitter -400 to 0 mmH2O
Fluke 51 II Single Input Digital Thermometer
Rosemount 3051TA1A2B21AB4T1Q4M5 Pressure Transmitter 0 to 1 kg/cm2
Zirconia O2 Analyzer Ecoa Z C-28B
Rosemount 3051CG1A22A1AM5B4DFK5Q4 Pressure Transmitter 0 to 200 mmH2O
Rosemount 3051CG2A22A1AM5B4DFK5Q4 Pressure Transmitter 0 to 1600 mmH2O
Rosemount 3051CG3A23A1AB4M5DF Pressure Transmitter -1 to 1 kg/cm2
Rosemount 3051CG5A22A1BM5B4DFK5L4 Pressure Transmitter 0 to 55459.6 IN H2O
ROSEMOUNT 1144G6000A22 Pressure Transmitter
Rosemount C30610-1126-0300 In-Line Manif / MWP : 10000 PSI
Rosemount 3051CG5A02A1KS5I1M6Q4Q8 Pressure Transmitter 0 to 35 BAR
Rosemount 3051CG3A02A1KS5I1M6Q4Q8 Pressure Transmitter 0 to 2480 MBAR
Rosemount 3051S2TG3A2A11A1KB4K7M5Q4Q8 Pressure Transmitter 0 to 30 BARG
Rosemount 3051S2TG3A2A11A1KB4K7M5Q4Q8 Pressure Transmitter 0 to 10 BARG
Rosemount 3051S2TG3A2A11A1KB4K7M5P1Q4Q8 Pressure Transmitter 0 to 40 BARG
Rosemount 3051CG5A04A1KM5B7I1H4L6P1Q4Q8TR Pressure Transmitter 0 to 40 BAR
Rosemount 3051TA2A2B31KE8M6Q4Q8 Pressure Transmitter 0 to 0.5 BAR ABS
Rosemount 3051CD3A02A1KM6BCI7H2L4 Pressure Transmitter 0 to 1000 inH2O
Foxboro Pressure Transmitter 840 INH2O
KEP Kessler Ellis Products DRTA34 Dual Rate Totalizer
ABB 364DS Differential Pressure Transmitter
Rosemount 3051CD2A22A1AM5B4DFK5Q4 Pressure Transmitter -750 to 0 mmH2O
GE Unik 5000 Pressure Sensor
Bobine d'électrovanne Eugen Seitz 2A27 118.100.024N 24Vdc 11 W
Thermostat Danfoss RT14
Soupape de siège angulaire à commande pneumatique BURKERT type 2000 00002167
Thermostat Danfoss RT3 017-501666
Druck RTX 1000A Pressure Transmitter
Weishaupt iTRON DR100 Programmable Microprocessor Controller
Casappa EP45-S/T0A Hydraulic Hand Pump
YOKOGAWA YTA110 EA2DB TEMPERATURE TRANSMITTER 200 DEGREES
Honeywell ST3000 STG17L Pressure Transmitter
Foxboro IDP10-A22C23D-M2B1 Differential Pressure Transmitter
FOXBORO PRESSURE TRANSMITTER IAP10
Yokogawa EJA310A DPharp Pressure Transmitter 760mmHg abs
Endress Hauser PMC131 Pressure Transmitter Cerabar T
GP:50 311AIBRZ6CA-A1 Industrial Grade Pressure Transducer
Dynalco Controls LMD120D Singal Powered Digital Indicator
YOKOGAWA EJA438W DPHARP PRESSURE TRANSMITTER 25KGF/CM2
YOKOGAWA EJA438W DPHARP PRESSURE TRANSMITTER 40KG/CM2
YOKOGAWA EJA438W DPHARP PRESSURE TRANSMITTER 30 KGF/CM2
YOKOGAWA EJA430A PRESSURE TRANSMITTER 10KG/CM2
Gemu 687 40D59345E12/N Pneumatically Operated Diaphragm Valve
Wika Flush Pressure Transmitter S-11
SCHNEIDER PowerLogic PM5300 METSEPM5330 Power Meter
Saginomiya Temperature Controls TPS-K2100WL3Q Range 40-100 *C
ASCO WSEMETB327A102 Solenoid Valve
Gemu 687 25D59345E11/N Pneumatically Operated Diaphragm Valve
FESTO SRBC series Sensor SRBC-CA3-YR90-MW-22A-1W-C2P20 Set of 2 Piece
YOKOGAWA EJA430A 30KG/CM2 PRESSURE TRANSMITTER
Rosemount 3051CG4A22A1AM5B4K5I4P1Q4 Pressure Transmitter 0 to 6 kg/cm2
Parker STH013 high pressure 1.5" bsp centrifugal water separator 16 barg
Danfoss RT3 Thermostat 017-501666
Danfoss RT14 Thermostat
Danfoss RT101 Thermostat 017-500666 Temperature Switch
Barksdale 0402-213 DPD1T-M150SS-GL Differential Pressure Switch 0.72 to 10.2 BAR
BURKERT Type 2000 Pneumatically Operated Angle Seat Valve 00002167
Rosemount 3051S2CD2A2B12A1BK1M5Q4Q8T1 Pressure Transmitter 0 to 1177 MMH2O
Rosemount 3051S1TG2A2A11A1BB4D1I1M5P1Q4Q8T1 Pressure Transmitter 0 to 7 BARG
Rosemount 3051CD2A02A1AS5I5M5 Pressure Transmitter 0 to 2500 MMWC
Rosemount 3051CD4A04A1AM5E5P1S5Q4Q8A0220 Pressure Transmitter 0 to 300 KPA
Rosemount 3051CD2A06B1AM5B1DFK5H2A0037 Pressure Transmitter 0 to 2500 mmH2O
Rosemount 3051CD2A02A1AM5B1DFK5H2 Pressure Transmitter 0 to 2500 mmH2O
Rosemount 3051CD1A02A1AS5I5M5 Pressure Transmitter -25 to 25 MMWC
Rosemount 3051TG2A2B21AS5B4I5M5 Pressure Transmitter 0 to 7 KG/CM2
Rosemount 3051TG3A2B21AS5B4I5M5 Pressure Transmitter 0 to 15 KG/CM2
Yokogawa EJA510E Pressure Transmitter 0 to 2000 MBAR ABS
Rosemount 2088G2S22A2M5B4K5Q4Q8S5 Pressure Transmitter 0 to 10 BAR
Rosemount 2088G2S22A2M5B4K5Q4Q8S5 Pressure Transmitter 0 to 4 BAR
Rosemount 2088G2S22A2B4Q4 Pressure Transmitter 0 to 7 BAR
Yokogawa YTA110 Temperature Transmitter 0 to 200 Degree C
METRIX EXTENSION CABLE MX8031 SERIES
Rosemount 3051CD1A22A1AM5B4DFK5Q4 Pressure Transmitter 0 to 100 mmH2O
Rosemount 3051CG2A22A1AM5B4DFK5Q4 Pressure Transmitter 0 to 2800 mmH2O
Rosemount 3051CG1A22A1AM5B4DFK5Q4 Pressure Transmitter -200 to 200 mmH2O
WIKA IS-20-S-BAN-GD-AZGA4ZUZS-ZZZ Pressure Transmitter 0-0,25 Bar
Druck PTX7534-4914 Pressure Transmitter 275 bar sg
Oriental Motor AC Magnetic Brake Motor 3RK15GN-AWM
TRAFAG Industat / Navistat Type 471.2331 Temperature Switch ISNT 15011
CONTACT
Soupape de sécurité soupape de secours Apollo Conbraco 19KEDK175
Eugen Seitz 2A27 Solenoid Valve Coil 118.100.024N 24Vdc 11 W
Gemu PN16 DN15 1/2" 612 15D59405201TS Manually operated diaphragm valve
Meiyo Electric SMP-2LB Pressure Transmitter
YOKOGAWA EJA430A PRESSURE TRANSMITTER 30KG/CM2
Soupape limit
Convertiss
Tamagawa Seiki TS4N39E11 Sychro TX.TR Motor
Tamagawa Seiki TS21N1E11 Synchro TX Motor
Rosemount 3051CD2F02A1AM5BADFI1H2Q4A01 Pressure Transmitter 0 to 2500 mmH2O
Rosemount 2088G2S22A2M5I1Q4 Smart Pressure Transmitter
Yokogawa EJA110E DPharp Pressure Transmitter
Apollo Conbraco Relief Valve Safety Valve 19KEDK175
Expansion Valve Controller UC-5011 EXV-Driver
Danfoss Pressure Transmitter type AKS32 060G2035
Bender RCM465YN Ground Fault Monitor
Ampèremètre analogique monophasé IME AQ96M
Yokogawa EJA430A DPharp Pressure Transmitter 16kgf/cm2
Relais de protection électrique Schneider Electric VIP45 REL59913 200 ampères
Carte PCB entrée Khenkikian Electronics AVR210-35A 170-240 VAC
Électrovanne Parker Kuroda PCS2406-NB-100ZC.
SIEMENS PMU 6SE7090-0XX84-2FA0 Para Metering Unit
Thermomètre à gaz WIKA DIN 16196
Endress Hauser Deltabar S Pressure Transmitter
Kongsberg MN524N150U Capt
Hydac VR 2 LE.1 Return Line Clogging Indicator
Mitutoyo IMZ-300 Inside MicroMeter 300 mm
Ashcroft PS10/80xO4 Pressure Limiter Valve 10000 PSI
GEMS Sensor Type 1700BGN40D2111G350003 Pressure Transducer
Hitachi WJ200-004HFC Inverter 0.4 kW / 0.5 HP 380-480V 3 Phase
Alfa laval 597256 01 Temperature Sensor